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Level: Beginner
Length: 25 mi (40.2 km)
Surface: Singletrack
Configuration: Network
Elevation: +667/ -675 ft
Total: 11 riders

Mountain Biking Croy Creek Trail System

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#20 of 317 mountain bike trails in Idaho
#2,133 in the world

The Croy Creek trails are masterpieces of their type. They are no-nonsense back-country trails that weave their way around rolling hills unencumbered by technical features. The gradient is strictly controlled (except for a small section on Bullion Connector) so if you take your time, you'll climb without breaking out into a sweat. If you're going down-slope you won't carve off layers of brake pad. You won't encounter strait lines or level running - these trails are curvy and rolling. Intermediate riders will think they're in nirvana. Advanced riders will find that the gritty surface will keep them focused at high speed. There are eight trails that can be connected into a loop (or two). They are all very similar. The setting has a nice open-spaces, on-top-of-the-world feeling as you pedal around arid hills covered with low shrubs and grasses above civilization in the valley below.

First added by TrailAPI on Aug 31, 2013. Last updated Apr 28, 2020. → add an update
Before you go
  • Drinking water: unknown
  • Lift service: unknown
  • Night riding: unknown
  • Pump track: unknown
  • Restrooms: unknown
  • Fat bike grooming: unknown
  • E-bikes allowed: unknown
  • Fee required: unknown
This trail information is user-generated. Help improve this information by suggesting a correction.
Getting there
There are two trailheads - one on Croy Creek Road and one on Croy Creek Road and one on Bullion Gulch Road... For the Croy Creek trailhead head out of Bailey on Croy Creek Road. You'll see the parking area on your right after 3.4 miles. For the Bullion Creek trailhead continue on along Croy Creek Road. 4.5 miles from Bailey turn right up Bullion Gulch Road. Look for a small car park on your fight after about two miles.
System trails (2)
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Croy Creek Trail System Trail map

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ccasperson (on Jul 24, 2019)
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Trail conditions

Good (on Jul 27, 2017)
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Mountain Bike Trails Near Hailey, Idaho

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Rider questions

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  • Jim Cummings
    Reviewing Bulldog:

    By itself, the Bulldog trail doesn't add up to much but combined with the other trails in the Croy Creek System you'll have a nice morning's ride. I've given it two stars although it deserves more! There is a reason but I won't bore you with it.

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  • Jim Cummings

    I started riding at the Bullion Bulch trailhead, headed up the Bull Dog trail, then Two Dog, detoured down Wilson Gulch, back onto Two Dog, and finally Bullion Connector. That is probably the best loop of the Croy Creek Trail System. You could extend it by taking in the Hidden Valley Trail which would add an extra 6 miles. All the trails I rode are very similar - intermediate cross-country with few technical features but lots of curvy, gradient-controlled track on firm, gritty dirt.

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  • JoshMTB406
    Reviewing Hidden Valley:

    If you park on Bullion Gulch Road at the start of this trail it is about a 7 mile lollipop loop of sorts but only a small section of trail is repeated. It starts out with some relatively steep climbing but nothing too terrible. Riding back and forth through the Aspen Grove is enjoyable as are some nice groomed berms on the descent. You definitely want to ride this loop in a counterclockwise direction.

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  • trikeflyer

    It's named quigly slaughter house loop

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  • trikeflyer
    Reviewing Bulldog:

    Wrong map this bullion connector to hidden valley loop

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  • ccasperson
    Reviewing Hidden Valley:

    Fun Loop trail that has a bit of everything - aspen grove, rocky hillside, sandy sections, trophy-sized sagebrush. I prefer to hit it counter-clockwise, but you'll have fun either way. Other than the climb up into the valley, no real climbs or big downhills. Best when linked up with other Croy Creek area trails (hope the 2013 Beaver Creek fire doesn't keep those out of commission for too long!)

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  • High_Pressure
    Reviewing Bulldog:

    Always perfect. I love to link up other trails nearby or run it again.

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